The Triadic Texture: Neutrino Predictions, Viable Vacuum, and Phenomenological Constraints
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| Format: | Preprint |
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2026
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| _version_ | 1866914577522884608 |
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| author | Goswami, Sagar Tirtha Chakraborty, Pralay Roy, Subhankar |
| author_facet | Goswami, Sagar Tirtha Chakraborty, Pralay Roy, Subhankar |
| contents | A minimal and predictive neutrino mass matrix texture for Majorana neutrino is proposed. The texture favours the normal hierarchy of neutrino mass eigenvalues. It further predicts the octant of $θ_{23}$, constraints $δ$, gives bounds on neutrino mass eigenvalues and also gives ranges for the two Majorana phases.The texture is realised in the framework of a Type-I seesaw and a Weinberg like dimension 6 operator under an extended symmetry of $SU(2)_L \otimes U(1)_Y \otimes A_4 \otimes Z_{10} \otimes Z_7 \otimes Z_5 \otimes Z_3$. The texture can be realised with different sets of vacuum expectation values of the associated scalar fields, but not all such sets lead to a viable scalar sector. The model also constrains the allowed channels of charged lepton flavour violation and leads to a suppressed baryon asymmetry generation through conventional leptogenesis. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2605_18154 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | The Triadic Texture: Neutrino Predictions, Viable Vacuum, and Phenomenological Constraints Goswami, Sagar Tirtha Chakraborty, Pralay Roy, Subhankar High Energy Physics - Phenomenology A minimal and predictive neutrino mass matrix texture for Majorana neutrino is proposed. The texture favours the normal hierarchy of neutrino mass eigenvalues. It further predicts the octant of $θ_{23}$, constraints $δ$, gives bounds on neutrino mass eigenvalues and also gives ranges for the two Majorana phases.The texture is realised in the framework of a Type-I seesaw and a Weinberg like dimension 6 operator under an extended symmetry of $SU(2)_L \otimes U(1)_Y \otimes A_4 \otimes Z_{10} \otimes Z_7 \otimes Z_5 \otimes Z_3$. The texture can be realised with different sets of vacuum expectation values of the associated scalar fields, but not all such sets lead to a viable scalar sector. The model also constrains the allowed channels of charged lepton flavour violation and leads to a suppressed baryon asymmetry generation through conventional leptogenesis. |
| title | The Triadic Texture: Neutrino Predictions, Viable Vacuum, and Phenomenological Constraints |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2605.18154 |